A nurse is caring for a client who is receiving oxygen at 2 L/min via a nasal cannula. The nurse recognizes the client is receiving which of the following inspired oxygen concentration?
36%
70%
50%
28%
The Correct Answer is D
D. 28%:
When a client receives oxygen via a nasal cannula at a flow rate of 2 L/min, the approximate inspired oxygen concentration is around 24-28%. This is because each liter of oxygen delivered through a nasal cannula adds approximately 4% to the baseline room air concentration of 21%. Therefore, at 2 L/min, the client would be receiving approximately 24-28% inspired oxygen concentration.
A. 36%, B. 70%, C. 50%:
These percentages are not consistent with the oxygen concentration delivered via a nasal cannula at 2 L/min. Higher flow rates or alternative oxygen delivery systems, such as masks or high-flow nasal cannula, would be needed to achieve these concentrations.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C","E"]
Explanation
A. A client who has stage IV breast cancer and is expected to live 3 months:
This client is eligible for hospice care because they have a terminal illness (stage IV breast cancer) with a prognosis of less than six months to live if the disease follows its typical course. Hospice care focuses on comfort and quality of life in the final months of life.
B. A client who has a diagnosis of COPD and requires supplemental oxygen:
This client is not automatically eligible for hospice care based solely on a COPD diagnosis and the need for supplemental oxygen. Eligibility for hospice would require a prognosis of six months or less to live if the disease follows its usual course. More specific criteria, such as frequent hospitalizations or a significant decline in functional status, would need to be met.
C. A client who has end-stage kidney disease and has stopped dialysis:
This client is eligible for hospice care because stopping dialysis typically indicates that the client has a limited life expectancy, usually measured in weeks to months. Hospice care can help manage symptoms and provide support for end-of-life care.
D. A client who has type 1 diabetes mellitus and is on an insulin pump:
This client is not eligible for hospice care based solely on the presence of type 1 diabetes mellitus and the use of an insulin pump. Hospice care eligibility is generally for clients with a terminal diagnosis and a life expectancy of six months or less if the disease follows its usual course.
E. A client who has terminal lung cancer and has discontinued all treatment:
This client is eligible for hospice care because they have a terminal illness (lung cancer) and have chosen to discontinue curative treatment. Hospice care focuses on palliative treatment to improve the quality of life and manage symptoms during the end-of-life stage.
Correct Answer is D
Explanation
A) "It's a good idea to help make sure your husband can sleep comfortably.":
This encourages the partner to administer medication, which can lead to overmedication and potential harm.
B) "Why do you think your husband needs more medication when he is asleep?":
This might cause the partner to feel defensive. It also does not provide the necessary education about the correct use of the PCA pump.
C) "Next time you think he needs more medication, call me and I'll push the button.":
This is inappropriate as well. It does not address the core issue that only the patient should be pressing the button to ensure safe and appropriate use of the PCA pump.
D) "Your husband should decide when more medication is needed.":
This educates the partner about the proper use of the PCA pump, emphasizing that only the patient should press the button to ensure they are receiving medication only when they feel pain. This minimizes the risk of overmedication and adverse effects.
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